lasso device (astrorope) the drifting astronaut could throw to hook to the space station. References Further reading External links "More Favored than the Birds": The Manned Maneuvering Unit in Space NASA Manned maneuvering unit: User's guide - 1978 (PDF document) Assessment of the NASA Manned Maneuvering Unit - 1988 (PDF document) Astronautix SPK Human spaceflight propulsion 1965 introductions Projects established in 1965